for Cannabinoid Response & Health Impact
Cannabis Product
on Clinical-Grade Science.
Biomarker-based validation for your edibles, tinctures, and topicals
GLP-aligned sample processing and documentation
White-labeled reporting options for investors or distribution
What Makes Us Different
Most cannabis testing labs are slow, opaque, or outdated. We’re not.
At The Test Joint, powered by P23 Labs, we combine the science of molecular diagnostics with deep compliance expertise and modern logistics—delivering results and reports that build trust, reduce risk, and get your product to market faster.
Trusted by 400+ great companies worldwide:
Where Others Fall Short
The Test Joint Advantage
Why choose the test joint
24–48 Hour Turnaround
Get your certified results fast — not in a week
Remote & At-Home Options
Access testing from anywhere — rural to urban
Cross-Contaminant Testing
Minority- and woman-owned. We support small growers.
Clinical-Grade Accuracy
Powered by CLIA-certified molecular diagnostics
Simplified, Customized COAs
Branded reports, QR traceability, audit-ready
Social Equity Commitment
Branded reports, QR traceability, audit-ready
Testing Services
Our highly skilled team is committed to providing the US cannabis community with lab results that are consistently accurate, reliable, and transparent. We are able to provide our clients with the necessary state-compliant testing, research and development testing, or informational testing to caregivers and patients. All of our services can be tailored to fit your specific needs without compromising on our excellent customer service and quick turnaround time.
Potency
A fast, accurate UHPLC method for separation and quantitation of 11 different cannabinoids, including: Δ9-THC, THCA, Δ8-THC, THCV, CBD, CBDA, CBDV, CBN, CBGA and CBC
Terpenes
Identification and quantitation of terpenes with GC-MS. Using mass spectrometry for this test guarantees accurate identification that cannot be achieved with older techniques such as GC-FID.
Chemical Residue
Identification and quantitation of pesticides with LC-MS/MS & GC-MS/MS. Using both techniques protects our clients by significantly reducing the risk of false positives.
Residual Solvents
Identification and quantitation of residual solvents in extracts and edibles via GC-MS.
Heavy Metals
Identification and quantitation of toxic metals: arsenic, cadmium, chromium, lead, nickel and copper via ICP-MS.
Microbial Testing
PCR testing is a fast and accurate technique for the detection of bacteria and mold.
Water Activity & Moisture
These tests ensure that flower and products are dry enough to inhibit mold growth.
Foreign Matter
A microscopic examination to screen for extraneous or decomposed material in cannabis products.
New Cannabis Testing Services
Explore our cannabis testing services
How It Works
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Tell Us About Your Needs – Fill out a quick form or get a call
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Get a Custom Testing Plan – We’ll guide you on what panels and reports fit best
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Send Your Sample – Use our kits or schedule a courier
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Receive Certified COAs in 24–48 Hours – Fast. Clear. Compliant.
"The Test Joint helped us meet retailer deadlines with zero compliance issues. Their reports are night and day compared to the last lab."
Small-Batch Grower, Ohio
"We didn’t just get test results — we got a real lab partner. Their science and support gave us the confidence to scale."
Lydia James .
Ready to See the Difference?
Get a Free Sample Report. See how our reports compare and why leading brands trust P23 Labs.